28970140

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1283}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 60938640

約数和(自身を除く): 31968500

約数列:

[1, 2, 4, 5, 10, 20, 1129, 1283, 2258, 2566, 4516, 5132, 5645, 6415, 11290, 12830, 22580, 25660, 1448507, 2897014, 5794028, 7242535, 14485070, 28970140]

約数ペア:

[(1, 28970140), (2, 14485070), (4, 7242535), (5, 5794028), (10, 2897014), (20, 1448507), (1129, 25660), (1283, 22580), (2258, 12830), (2566, 11290), (4516, 6415), (5132, 5645)]